complete the story of reusing connection when resumability is not accepted by the server.

[lehecka]

1. today the server doesn't communicate whether it will honor the resumability
2. on refused resume, the connection should be used to establish a new socket instance. We don't do that today.

[yschimke]

The title suggests not closing the tcp socket for example, and just sending more frames over it. is that correct?

[benjchristensen]

Is this still applicable?